1 files changed, 153 insertions, 0 deletions
diff --git a/usr/src/lib/nsswitch/mdns/common/gethostent.c b/usr/src/lib/nsswitch/mdns/common/gethostent.c
new file mode 100644
index 0000000000..6b5756f0e9
--- /dev/null
+++ b/usr/src/lib/nsswitch/mdns/common/gethostent.c
@@ -0,0 +1,153 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include "mdns_common.h"
+
+/*
+ * gethostby* functions for the hosts database. The hosts
+ * database stores IPv4 addresses only.
+ * mDNS query functions to perform the host lookup
+ * are in mdns/common/mdns_common.c file.
+ * _nss_mdns_hosts_constr is called to initialize
+ * the nsswitch backend data structures.
+ */
+
+static nss_status_t
+getbyname(be, a)
+	mdns_backend_ptr_t	be;
+	void			*a;
+{
+	struct mdns_querydata   qdata;
+	char			*hname;
+
+	(void) memset(&qdata, 0, sizeof (struct mdns_querydata));
+
+	qdata.argp = (nss_XbyY_args_t *)a;
+	hname = (char *)qdata.argp->key.name;
+
+	_nss_mdns_updatecfg(be);
+	return (_nss_mdns_querybyname(be, hname, AF_INET, &qdata));
+}
+
+/*ARGSUSED*/
+static nss_status_t
+getbyaddr(be, a)
+	mdns_backend_ptr_t	be;
+	void			*a;
+{
+	nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
+	struct in_addr addr;
+	struct mdns_querydata  qdata;
+	char buffer[sizeof ("255.255.255.255.in-addr.arpa.")];
+	uint8_t *p;
+
+	(void) memset(&qdata, 0, sizeof (struct mdns_querydata));
+	qdata.argp = argp;
+
+	argp->h_errno = 0;
+	if ((argp->key.hostaddr.type != AF_INET) ||
+	    (argp->key.hostaddr.len != sizeof (addr)))
+		return (NSS_NOTFOUND);
+
+	(void) memcpy(&addr, argp->key.hostaddr.addr, sizeof (addr));
+
+	if (inet_ntop(AF_INET, (void *) &addr.s_addr,
+		(void *)qdata.paddrbuf,
+		sizeof (qdata.paddrbuf)) == NULL)
+			return (NSS_NOTFOUND);
+
+	qdata.af = AF_INET;
+	p = (uint8_t *)&addr.s_addr;
+	(void) snprintf(buffer, sizeof (buffer),
+		"%u.%u.%u.%u.in-addr.arpa.", p[3], p[2], p[1], p[0]);
+
+	_nss_mdns_updatecfg(be);
+	return (_nss_mdns_querybyaddr(be, buffer, qdata.af, &qdata));
+}
+
+/*ARGSUSED*/
+static nss_status_t
+_nss_mdns_getent(be, args)
+	mdns_backend_ptr_t	be;
+	void			*args;
+{
+	return (NSS_UNAVAIL);
+}
+
+/*ARGSUSED*/
+static nss_status_t
+_nss_mdns_setent(be, dummy)
+	mdns_backend_ptr_t	be;
+	void			*dummy;
+{
+	return (NSS_UNAVAIL);
+}
+
+/*ARGSUSED*/
+static nss_status_t
+_nss_mdns_endent(be, dummy)
+	mdns_backend_ptr_t	be;
+	void			*dummy;
+{
+	return (NSS_UNAVAIL);
+}
+
+/*ARGSUSED*/
+static nss_status_t
+_nss_mdns_hosts_destr(be, dummy)
+	mdns_backend_ptr_t	be;
+	void			*dummy;
+{
+	_nss_mdns_destr(be);
+	return (NSS_SUCCESS);
+}
+
+static mdns_backend_op_t host_ops[] = {
+	_nss_mdns_hosts_destr,
+	_nss_mdns_endent,
+	_nss_mdns_setent,
+	_nss_mdns_getent,
+	getbyname,
+	getbyaddr,
+};
+
+/*ARGSUSED*/
+nss_backend_t *
+_nss_mdns_hosts_constr(dummy1, dummy2, dummy3)
+	const char	*dummy1, *dummy2, *dummy3;
+{
+	return (_nss_mdns_constr(host_ops,
+		sizeof (host_ops) / sizeof (host_ops[0])));
+}
+
+/*ARGSUSED*/
+nss_status_t
+_nss_get_mdns_hosts_name(mdns_backend_ptr_t *be, void **bufp, size_t *sizep)
+{
+	return (_nss_mdns_gethost_withttl(*bufp, *sizep, 0));
+}